Willi Rinow

Willi Ludwig August Rinow (February 28th, 1907 in Berlin – March 29th, 1979 in Greifswald) was a German mathematician who specialized in differential geometry and topology. Rinow was the son of a schoolteacher. In 1926, he attended the Humboldt University of Berlin, studying mathematics and physics under professors such as Max Planck, Ludwig Bieberbach, and Heinz Hopf. There, he received his doctorate in 1931 (Über Zusammenhänge zwischen der Differentialgeometrie im Großen und im Kleinen, Math. Zeitschrift volume 35, 1932, page 512). In 1933, he worked at the Jahrbuch über die Fortschritte der Mathematik in Berlin. In 1937, he joined the Nazi Party.^[1] During 1937—1940, he was an editor of the journal Deutsche Mathematik. In 1937, he became a professor in Berlin and lectured there until 1950. His lecturing was interrupted because of his work as a mathematician at the Oberspreewerk in Berlin (a producer of radio and telecommunications technology) from 1946 to 1949.

In 1950, he became a professor at the University of Greifswald. He retired in 1972.

The Hopf–Rinow theorem is named after Hopf and Rinow.

In 1959, he became the director of the Institute for Pure Mathematics at the German Academy of Sciences at Berlin and president of the German Mathematical Society.

War work

During World War II, Rinow worked as a cryptanalyst in Subsection F of Referat I of Group IV of the Inspectorate 7/VI, that was later called the General der Nachrichtenaufklärung (GdNA), achieving the rank of Colonel. Rinow worked on researching methods to solve foreign ciphers. Rinow was subordinated to Herbert von Denffer who was Director of the section and subordinated to Hans Pietsch who was Director of the section. Major Rudolf Hentze was head of the group. Otto Buggisch who was a cryptanalyst who working in the GdNA and earlier the OKW/Chi and was interrogated by TICOM agents after the war, stated that Rinow was one of the most capable people in the unit.^[2]

Publications

Die innere Geometrie der metrischen Räume, Springer 1961^[3]
Lehrbuch der Topologie, Berlin, Deutscher Verlag der Wissenschaften 1975
Rinow Über Zusammenhänge der Differentialgeometrie im Großen und Kleinen, Mathematische Zeitschrift, volume 32, 1932, pages 512-528, Dissertation

References

^ Harry Waibel: Diener vieler Herren : Ehemalige NS-Funktionäre in der SBZ/DDR. Peter Lang, Frankfurt 2011 ISBN 978-3-631-63542-1 page 270
^ "Volume 4 – Signal Intelligence Service of the Army High Command" (PDF). NSA. p. 182. Retrieved 12 November 2016. This article incorporates text from this source, which is in the public domain.
^ Green, Leon W. (1963). "Review: Die innere Geometrie der metrischen Räume by Willi Rinow" (PDF). Bull. Amer. Math. Soc. 69 (2): 210–212. doi:10.1090/s0002-9904-1963-10916-7.

German Signals intelligence organisations before 1945

The Type of organisation
Name of organisation
People

Military (?)

Wehrmacht High Command Cipher Bureau	Erich Fellgiebel Albert Praun Hugo Kettler Wilhelm Fenner Erich Hüttenhain Peter Novopashenny Walter Fricke Karl Stein Wolfgang Franz Gisbert Hasenjaeger Heinrich Scholz Werner Liebknecht Gottfried Köthe Ernst Witt Helmut Grunsky Georg Hamel Georg Aumann Oswald Teichmüller Alexander Aigner Werner Weber Otto Leiberich Otto Buggisch Fritz Menzer
General der Nachrichtenaufklärung	Erich Fellgiebel Fritz Thiele Wilhelm Gimmler Hugo Kettler Fritz Boetzel Otto Buggisch Fritz Menzer Herbert von Denffer Ludwig Föppl Horst Schubert Friedrich Böhm Bruno von Freytag-Löringhoff Johannes Marquart Willi Rinow Rudolf Kochendörffer Hans Pietsch Guido Hoheisel Hans-Peter Luzius Wilhelm Vauck Rudolf Bailovic Alfred Kneschke
Luftnachrichten Abteilung 350	Wolfgang Martini Ferdinand Voegele
B-Dienst	Kurt Fricke Ludwig Stummel Heinz Bonatz Wilhelm Tranow Erhard Maertens Fritz Krauss
Abwehr (?)	Wilhelm Canaris

Civilian (?)

Pers Z S	Curt Selchow Horst Hauthal Rudolf Schauffler Johannes Benzing Otfried Deubner Hans Rohrbach Helmut Grunsky Erika Pannwitz Karl Schröter
Research Office of the Reich Air Ministry	Hermann Göring Gottfried Schapper Hans Schimpf Prince Christoph of Hesse

Training (?)

GdNA Training Referat
Heer and Luftwaffe Signals School

German Radio Intelligence Operations during World War II

Authority control databases
International	ISNI VIAF WorldCat
National	Germany United States France BnF data Czech Republic Netherlands Israel
Academics	CiNii Mathematics Genealogy Project Scopus zbMATH MathSciNet Leopoldina
People	Deutsche Biographie DDB
Other	IdRef

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